As the protector of the castle, you are to shoot all attacking dragons with the cannon. As long as the number of dragons that invaded are less than 5, you are fine, but if 5 dragons enter the castle, the game is over. After all, the knights can handle only so much. The cannon will fire wherever you point it. 3...2...1...FIRE! Btw, the game works better on small screen.
Youtuber "LuvDemSoundz" - Cannon sound effect - https://www.youtube.com/watch?v=Qvbm23xcFMo Myself - Designing characters, background, and programming